This handy Math in Focus Grade 3 Workbook Answer Key Chapter 17 Practice 2 Right Angles provides detailed solutions for the textbook questions.

## Math in Focus Grade 3 Chapter 17 Practice 2 Answer Key Right Angles

**Look at these angles. Use a piece of folded paper **

** to help you answer the questions.**

Question 1.

Which angle is less than a right angle?

Angle ________________

Answer:

Angle C, D and E are angles less then a right angle.

Explanation:

Angle less than a right angles are Acute angles.

Question 2.

Which angle is greater than a right angle?

Angle ________________

Answer:

Angle A is greater then a right angle.

Explanation:

Angle greater than a right angles are Obtuse angles.

Question 3.

Which angles are the same size as right angles?

Angles _________________

Answer:

Angle A and F are the same as right angles.

Explanation:

The angle bounded by two lines perpendicular to each other.

A right triangle has one angle exactly equal to 90 degrees.

**Mark all the right angles in each figure.**

Question 4.

Answer:

Explanation:

The above figure has,

One right angle is there, which is marked blue color.

The angle bounded by two lines perpendicular to each other.

A right triangle has one angle exactly equal to 90 degrees.

Question 5.

Answer:

Explanation:

The above figure has,

One right angle is there, which is marked blue color.

The angle bounded by two lines perpendicular to each other.

A right triangle has one angle exactly equal to 90 degrees.

Question 6.

Answer:

Explanation:

The above figure has,

One right angle is there, which is marked blue color.

The angle bounded by two lines perpendicular to each other.

A right triangle has one angle exactly equal to 90 degrees.

Question 7.

Answer:

Explanation:

The above figure has,

One right angle triangles , the angle is marked blue color.

The angle bounded by two lines perpendicular to each other.

A right triangle has one angle exactly equal to 90 degrees.

Question 8.

Answer:

Explanation:

The above figure has,

Two right angle are there, which are marked blue color.

The angle bounded by two lines perpendicular to each other.

A right triangle has one angle exactly equal to 90 degrees.

Question 9.

Answer:

Explanation:

The given figure has,

Two right angle are there, which are marked in blue color.

The angle bounded by two lines perpendicular to each other.

A right triangle has one angle exactly equal to 90 degrees.